這個pixel local storagefetch
frame fetchio
能夠一個pass作出soft particle/deferred lighting/soft edge waterpdf
programble blendingfile
中間的東西在tile上di
https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_shader_pixel_local_storage.txtco
就不用mrt或者倆pass了 省兩次帶寬 store/loadps
https://www.arm.com/files/pdf/9_2015ATF_Korea_UnrealEngine.pdfgis